Journal
JOURNAL OF SAUDI CHEMICAL SOCIETY
Volume 17, Issue 4, Pages 381-385Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jscs.2011.05.001
Keywords
Arbutus unedo L.; Phytochemical screening; Water and methanol extract; Phenolic fractions; Antimicrobial activity
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In this study, antimicrobial activities of water and methanol extract, and three phenolic fractions of the roots of Arbutus unedo L. were investigated. Poor antibacterial activity against both Staphylococcus aureus and Pseudomonas aeruginosa bacteria was shown with water and methanol extract. However moderate antibacterial activity was shown by water extract and phenolic fractions against Escherichia coli and S. aureus, respectively. The phytochemical screening of roots of A. unedo revealed the presence of quinones, anthraquinones reducteurs compounds, anthocyanins, tannins and flavonoids. Quantitative analysis showed that the roots were strongly dominated by anthocyanins compounds (3.65 mg g(-1)) followed by total flavonoids (0.56 mg(-1)) and flavones & flavonols (0.17 mg g(-1)). (c) 2011 Production and hosting by Elsevier B.V. on behalf of King Saud University.
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